Hongyemoon, Granite arch tunnel in Jung District, Incheon, South Korea

Hongyemoon is an arched tunnel cut through the southern slope of Eungbongsan in Songhak-dong, built of granite. It measures 4.5 m wide, 13 m high and 13 m long, with a rounded arch opening onto Hongyemun-ro. The passage is bare stone, without woodwork or a roof.

Japanese residents near Incheon Port, living in Jungang-dong and Gwandong, pushed to expand into Jeondong and Manseok-dong. The only route to Manseok-dong ran through Nae-dong and the Yongdong ridge and around Hwapyeong-dong, so the Japanese military engineers began cutting the southern slope of Eungbongsan in 1905 and finished the tunnel in 1908.

The gateway demonstrates Korean architectural expertise through its construction methods, incorporating precise measurements and traditional building techniques from the period.

The gateway is located near public transportation in Jung District and is easy to reach. The site is regularly maintained and accessible to visitors.

The tunnel was cut through the southern ridge of Eungbongsan, replacing the detour through Nae-dong, Yongdong Maruteok and Hwaping-dong that had been the only route from the port to Manseok-dong. Japanese military engineers began work in 1905 and finished in 1908.